LED street lamps of Led Street Light Factory are mainly used for road lighting such as main roads, secondary roads, branch roads, factories, schools, gardens, urban squares, courtyards, etc.
The increase of output power and luminous flux also needs to be further improved from the basic level of high-power white LED epitaxial technology and chip technology. In terms of secondary optical design, the radiation forms of LEDs include Lambertian, side-shooting, bat-wing and concentrating. In the field of road lighting, based on design experience, Lambertian and bat wing are more suitable. Through secondary optical design, the illumination range and luminosity curve of LED can meet the needs of road lighting.
The most common form of LED used in road lamps is mainly in the lamp. A matrix LED is installed on an almost flat installation surface (also a reflective surface). This design method is impossible to obtain a good lamp. Light distribution.
This standard specifies the definition, product classification, model and naming, technical requirements, test methods, inspection rules, signs, instructions for use, packaging, transportation and storage requirements for LED (light emitting diode) street lights.
This standard applies to LED (light emitting diode) street lights for roads, street roads, tunnel lighting and other outdoor public places with DC power supply below 250V or AC power supply below 1000V.
1 Electrical performance of lamps
When the LED street lamp works under the nominal rated power supply voltage and rated frequency, the difference between its actual power consumption and the rated power should not be greater than 10%, and the power factor should not be less than 0.92.
2 Degree of protection
The protection grade of LED street light A grade product should not be lower than IP67; B grade product should not be lower than IP66; C grade product should not be IP65.
3 Average life span
The rated average life of LED street lights should not be less than 30000h.
4 Maximum temperature
The maximum rated temperature Tc of LED street lights should not be greater than 58°C.
5 Maximum heat sink temperature
The maximum heat sink temperature of each LED tube in the lamp should not be greater than 65°C.
6 Main optical parameters
The surge suppression performance (lightning resistance) should not be less than 2kV (line-line) and 4kV (line-ground).
8 Light distribution characteristics
When part of the LED bulbs in the lamp are extinguished or the entire lamp is dimmed, the spot shape and the uniformity of the road surface illumination should not change significantly.